2,3-Dihydrofurans useful as fungicides

Abstract

2,4,5-Trisubstituted-2,3-dihydrofurans useful for fungicidal applications are provided herein. The 2,3-dihydrofuran compounds correspond to the general formula <IMAGE> where R is an ethyl or vinyl group, R1 is a C1-10 hydrocarbon radical and X is a nitrile, amide or sulfonyl group. The compounds of this invention are effective fungicides for the treatment of seeds and also find use in other agricultural fungicidal applications.

We claim: 
     
       1. 4-Diethylcarbamyl-5-methyl-2-vinyl-2,3-dihydrofuran. 
     
     
       2. 4-Phenylcarbamyl-5-methyl-2-vinyl-2,3-dihydrofuran. 
     
     
       3. 4-Phenylsulfonyl-5-methyl-2-vinyl-2,3-dihydrofuran. 
     
     
       4. A method of inhibiting the growth of fungi which comprises contacting said fungi with a fungicidally effective amount of a compound of the formula ##STR22## wherein R is an ethyl or vinyl group, R 1  is a C 1-4  alkyl group and X is selected from the group consisting of nitrile; ##STR23## and R' is C 1-4  alkyl or phenyl and R" is hydrogen, C 1-4  alkyl or phenyl; and ##STR24## where R'" is C 1-10  alkyl, phenyl, benzyl, C 1-4  alkyl- or alkoxyl-substituted phenyl or benzyl or the group ##STR25## where R' is C 1-4  alkyl or phenyl and R" is hydrogen, C 1-4  alkyl or phenyl.